Stylus for electronic devices
First Claim
Patent Images
1. A stylus comprising:
- a body;
a nosepiece at an end of the body;
a force sensor disposed within the body;
a tubular shield moveable within the body and contacting the force sensor such that movement of the tubular shield in response to a force received at the nosepiece moves the force sensor;
a signal line within the tubular shield;
a first electric field generator electrically coupled to the signal line and coaxially aligned with a longitudinal axis of the body; and
a second electric field generator separated from the first electric field generator.
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Accused Products
Abstract
A user input system including a stylus and an electronic device. A user may manipulate the stylus across an input surface of the electronic device and the movement may be detected using axially-aligned electric fields generated by the stylus. The stylus may also include a force-sensitive structure that can be used to estimate a force applied to the electronic device by the stylus.
37 Citations
18 Claims
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1. A stylus comprising:
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a body; a nosepiece at an end of the body; a force sensor disposed within the body; a tubular shield moveable within the body and contacting the force sensor such that movement of the tubular shield in response to a force received at the nosepiece moves the force sensor; a signal line within the tubular shield; a first electric field generator electrically coupled to the signal line and coaxially aligned with a longitudinal axis of the body; and a second electric field generator separated from the first electric field generator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A stylus comprising:
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a wireless communication element; a force sensor in communication with the wireless communication element; a translatable structure supporting the force sensor and comprising a tubular electromagnetic shield extending away from the force sensor; a signal conduit within the tubular electromagnetic shield, the signal conduit comprising; a first signal line; a ground line; and a second signal line, separated from the first signal line by the ground line; a first electric field generator coupled to the first signal line; and a second electric field generator coupled to the second signal line;
wherein the first electric field generator and the second electric field generator are axially aligned. - View Dependent Claims (12, 13, 14, 15)
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16. A stylus comprising:
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an enclosure defining a longitudinal axis; a controller within the enclosure; a signal conduit within the enclosure and aligned with the longitudinal axis, the signal conduit comprising; a body comprising; an exterior surface; and a conductive end; a first signal line within the body and electrically connected to the conductive end; a second signal line within the body; and a via extending through the body and electrically connecting the first signal line to the exterior surface; a first electric field generator coupled to the conductive end of the body of the signal conduit; and a second electric field generator formed onto the exterior surface of the body of the signal conduit;
wherein the controller is configured to;generate a first electric signal to apply to the first signal line to generate a first electric field with the first electric field generator; and generate a second electric signal to apply to the second signal line to generate a second electric field with the second electric field generator. - View Dependent Claims (17, 18)
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Specification